:root {
    /* Refined palette — ink on warm paper */
    --paper:        #F5F1EA;
    --paper-soft:   #EFE9DF;
    --paper-deep:   #E7DFD1;
    --ink:          #1A1815;
    --ink-soft:     #3A3631;
    --ink-mute:     #6B655C;
    --ink-faint:    #9A9388;
    --rule:         #D8CFBE;
    --rule-soft:    #E5DDCC;
    --accent:       #418e62;       /* deep eucalyptus */
    --accent-warm:  #D14B1F;       /* drafting orange */
    --accent-warm-deep: #A8390F;
    --accent-warm-soft: #F4D6C5;
    --blueprint:    #1B3A7A;       /* cyanotype */
    --gold:         #8C7A4B;

    /* Typography */
    --sans:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --serif: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --mono:  "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

    /* Spacing (4/8/12/16/24/32 + rhythm extensions) */
    --s-1: 4px;
    --s-2: 8px;
    --s-3: 12px;
    --s-4: 16px;
    --s-6: 24px;
    --s-8: 32px;
    --s-12: 48px;
    --s-16: 64px;
    --s-24: 96px;
    --s-32: 128px;

    --container: 1240px;
    --container-narrow: 960px;
  }

  *, *::before, *::after { box-sizing: border-box; }

  html { scroll-behavior: smooth; }
  body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: var(--sans);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
  }

  ::selection { background: var(--ink); color: var(--paper); }

  a { color: inherit; text-decoration: none; }
  img, svg { display: block; max-width: 100%; }

  .container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 var(--s-8);
  }
  .container--narrow { max-width: var(--container-narrow); }

  /* ------------ Typography ------------ */
  .eyebrow {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--ink-mute);
    display: inline-flex;
    align-items: center;
    gap: var(--s-3);
  }
  .eyebrow::before {
    content: "";
    width: 28px;
    height: 1px;
    background: var(--ink-faint);
  }

  h1, h2, h3, h4 {
    font-family: var(--serif);
    font-weight: 400;
    color: var(--ink);
    margin: 0;
    letter-spacing: -0.01em;
  }

  h1.display {
    font-size: clamp(48px, 7.5vw, 104px);
    line-height: 0.98;
    letter-spacing: -0.025em;
    font-weight: 400;
  }
  h1.display em {
    font-style: italic;
    font-weight: 400;
    color: var(--accent-warm);
  }
  .hero__stroke {
    display: inline-block;
    position: relative;
  }
  .hero__stroke::after {
    content: "";
    position: absolute;
    left: 0; right: 0;
    bottom: 0;
    height: 0.06em;
    background: var(--accent-warm);
    transform-origin: left;
  }
  @media (prefers-reduced-motion: no-preference) {
    .hero__stroke::after {
      transform: scaleX(0);
      animation: heroStrokeDraw 1.2s cubic-bezier(0.22, 1, 0.36, 1) 0.6s forwards;
    }
  }
  @keyframes heroStrokeDraw {
    to { transform: scaleX(1); }
  }

  h2.section-title {
    font-size: clamp(36px, 4.8vw, 64px);
    line-height: 1.04;
    letter-spacing: -0.02em;
  }
  h3 { font-size: 24px; line-height: 1.25; }
  h4 { font-size: 18px; line-height: 1.3; }

  .lede {
    font-family: var(--serif);
    /* font-style: italic; */
    font-weight: 400;
    font-size: clamp(18px, 1.5vw, 22px);
    line-height: 1.55;
    color: var(--ink-soft);
    max-width: 56ch;
  }

  p { margin: 0 0 var(--s-4); color: var(--ink-soft); }
  p.small { font-size: 14px; color: var(--ink-mute); }

  .rule {
    display: block;
    height: 1px;
    background: var(--rule);
    border: 0;
    margin: 0;
  }

  /* ------------ Navigation ------------ */
  header.nav {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(14px) saturate(140%);
    -webkit-backdrop-filter: blur(14px) saturate(140%);
    background: rgba(245, 241, 234, 0.78);
    border-bottom: 1px solid var(--rule-soft);
  }
  .nav__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--s-4) var(--s-8);
    max-width: var(--container);
    margin: 0 auto;
  }
  .brand {
    display: inline-flex;
    align-items: baseline;
    gap: var(--s-2);
    font-family: var(--serif);
    font-size: 22px;
    font-weight: 600;
    letter-spacing: -0.01em;
  }
  .brand__mark {
    width: 14px; height: 14px;
    border: 1px solid var(--ink);
    position: relative;
  }
  .brand__mark::after {
    content: "";
    position: absolute; inset: 3px;
    background: var(--ink);
  }
  .brand small {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--ink-mute);
    margin-left: -4px;
  }
  .nav__links {
    display: flex; gap: var(--s-8);
    font-size: 14px;
    color: var(--ink-soft);
  }
  .nav__links a { transition: color .2s ease; }
  .nav__links a:hover { color: var(--ink); }
  .nav__cta {
    display: inline-flex;
    align-items: center;
    gap: var(--s-2);
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink);
    border: 1px solid var(--ink);
    padding: 10px var(--s-4);
    transition: background .2s ease, color .2s ease, border-color .2s ease;
  }
  .nav__cta:hover { background: var(--accent-warm); color: #FFFFFF; border-color: var(--accent-warm); }
  @media (max-width: 820px) {
    .nav__links { display: none; }
  }

  /* ------------ Hero ------------ */
  .hero {
    padding: var(--s-24) 0 var(--s-16);
    position: relative;
    overflow: hidden;
  }
  .hero__grid {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: var(--s-12);
    align-items: start;
  }
  @media (max-width: 980px) {
    .hero__grid { grid-template-columns: 1fr; gap: var(--s-12); }
  }
  .hero__copy { max-width: 640px; }
  .hero__meta {
    display: flex;
    align-items: center;
    gap: var(--s-6);
    margin-bottom: var(--s-8);
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--ink-mute);
  }
  .hero__meta span:first-child {
    display: inline-block;
    width: 8px; height: 8px;
    background: var(--accent-warm);
    border-radius: 50%;
    margin-right: var(--s-2);
    box-shadow: 0 0 0 4px rgba(179, 83, 26, 0.12);
  }
  .hero p.lede { margin: var(--s-6) 0 var(--s-8); }

  .hero__ctas {
    display: flex; gap: var(--s-3);
    flex-wrap: wrap;
    align-items: center;
    margin-top: var(--s-6);
  }
  .btn {
    display: inline-flex;
    align-items: center;
    gap: var(--s-3);
    padding: 20px var(--s-8);
    font-family: var(--mono);
    font-size: 13px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    transition: transform .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
    border: 1px solid transparent;
    cursor: pointer;
  }
  .btn .arrow { font-size: 16px; }
  .btn:hover { transform: translateY(-1px); }
  .btn--primary {
    background: var(--accent-warm);
    color: #FFFFFF;
    box-shadow: 0 1px 0 var(--accent-warm-deep), 0 8px 24px rgba(209, 75, 31, 0.28);
  }
  .btn--primary:hover { background: var(--accent-warm-deep); }
  .btn--ghost {
    background: transparent;
    color: var(--ink);
    border-color: var(--ink);
  }
  .btn--ghost:hover { background: var(--ink); color: var(--paper); }
  .btn .arrow {
    transition: transform .25s ease;
  }
  .btn:hover .arrow { transform: translateX(4px); }

  .hero__caption {
    margin-top: var(--s-8);
    padding-top: var(--s-4);
    border-top: 1px solid var(--rule);
    display: flex;
    justify-content: space-between;
    gap: var(--s-6);
    font-size: 13px;
    color: var(--ink-mute);
    max-width: 560px;
  }
  .hero__caption strong {
    display: block;
    font-family: var(--serif);
    font-size: 22px;
    color: var(--ink);
    font-weight: 500;
    margin-bottom: 2px;
  }

  /* Hero visual — drawing sheet (paper → CAD) */
  .hero__sheet {
    position: relative;
    margin: 0;
    background: var(--paper);
    border: 1px solid var(--rule);
    padding: var(--s-6);
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(26,24,21,0.04), 0 16px 40px rgba(26,24,21,0.06);
  }
  .hero__sheet::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
      linear-gradient(to right,  transparent 0, transparent calc(100% - 1px), rgba(26,24,21,0.06) 100%) 0 0 / 40px 40px,
      linear-gradient(to bottom, transparent 0, transparent calc(100% - 1px), rgba(26,24,21,0.06) 100%) 0 0 / 40px 40px;
    pointer-events: none;
    opacity: 0.8;
  }
  .hero__sheet-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--s-4);
    padding-bottom: var(--s-4);
    border-bottom: 1px solid var(--rule-soft);
    position: relative;
    z-index: 1;
  }
  .hero__sheet-head-left {
    display: flex;
    align-items: center;
    gap: var(--s-3);
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink-soft);
  }
  .hero__sheet-head-dot {
    width: 7px; height: 7px;
    background: var(--accent-warm);
    border-radius: 50%;
    box-shadow: 0 0 0 3px rgba(209,75,31,0.18);
    animation: pulse 2.2s ease-in-out infinite;
  }
  .hero__sheet-head-right {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink-faint);
    display: flex;
    gap: var(--s-4);
  }
  .hero__sheet-head-right b {
    color: var(--ink);
    font-weight: 500;
  }
  .hero__plan {
    position: relative;
    margin-top: var(--s-4);
    z-index: 1;
  }
  .hero__sheet-foot {
    margin-top: var(--s-4);
    padding-top: var(--s-4);
    border-top: 1px solid var(--rule-soft);
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--s-3);
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink-faint);
    position: relative;
    z-index: 1;
  }
  @media (min-width: 600px) {
    .hero__sheet-foot { grid-template-columns: repeat(4, 1fr); }
  }
  .hero__sheet-foot strong {
    color: var(--ink);
    font-weight: 600;
    display: block;
    margin-top: 4px;
  }

  /* Hero video — replaces the static SVG sheet */
  .hero__video {
    position: relative;
    margin: 0;
    background: var(--paper);
    border: 1px solid var(--rule);
    overflow: hidden;
    aspect-ratio: 16 / 9;
    box-shadow:
      0 2px 4px rgba(26, 24, 21, 0.04),
      0 16px 40px rgba(26, 24, 21, 0.06);
  }
  .hero__video-clip {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
  }
  @media (prefers-reduced-motion: reduce) {
    .hero__video-clip { display: none; }
    .hero__video {
      background-image: url("assets/plana-hero.poster.jpg");
      background-size: cover;
      background-position: center;
    }
  }

  /* Fullscreen toggle button */
  .hero__video-fullscreen {
    position: absolute;
    bottom: 12px;
    right: 12px;
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--paper);
    background: rgba(26, 24, 21, 0.55);
    border: 1px solid rgba(245, 241, 234, 0.18);
    border-radius: 4px;
    cursor: pointer;
    opacity: 0;
    transition: opacity 180ms ease, background 180ms ease, transform 180ms ease;
    padding: 0;
    z-index: 2;
  }
  .hero__video:hover .hero__video-fullscreen,
  .hero__video-fullscreen:focus-visible {
    opacity: 1;
  }
  .hero__video-fullscreen:hover {
    background: rgba(26, 24, 21, 0.78);
    transform: scale(1.04);
  }
  .hero__video-fullscreen:focus-visible {
    outline: 2px solid var(--accent-warm);
    outline-offset: 2px;
  }
  /* Touch devices have no hover — always show */
  @media (hover: none) {
    .hero__video-fullscreen { opacity: 0.85; }
  }

  /* When in fullscreen, drop the 16/9 frame and letterbox the video */
  .hero__video:fullscreen,
  .hero__video:-webkit-full-screen {
    aspect-ratio: auto;
    width: 100vw;
    height: 100vh;
    border: none;
    border-radius: 0;
    box-shadow: none;
    background: #000;
  }
  .hero__video:fullscreen .hero__video-clip,
  .hero__video:-webkit-full-screen .hero__video-clip {
    object-fit: contain;
  }
  .hero__video:fullscreen .hero__video-fullscreen,
  .hero__video:-webkit-full-screen .hero__video-fullscreen {
    /* Native browser controls take over in fullscreen */
    display: none;
  }

  /* Vector-trace animation on plan SVG */
  .plan-svg .plan-wall,
  .plan-svg .plan-interior,
  .plan-svg .plan-door,
  .plan-svg .plan-window {

    stroke-dasharray: 1200;
    stroke-dashoffset: 1200;
    animation: drawLine 1.6s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  }
  .plan-svg .plan-interior { animation-delay: 0.4s; }
  .plan-svg .plan-door     { animation-delay: 0.9s; animation-duration: 1.2s; }
  .plan-svg .plan-window   { animation-delay: 1.1s; animation-duration: 0.9s; }
  .plan-svg .plan-fixture  { opacity: 0; animation: planFade 0.6s ease-out 1.4s forwards; }
  .plan-svg .plan-label    { opacity: 0; animation: planFade 0.6s ease-out 1.5s forwards; }
  .plan-svg .plan-dim      { opacity: 0; animation: planFade 0.6s ease-out 1.7s forwards; }
  .plan-svg .plan-annot    { opacity: 0; animation: planFade 0.6s ease-out 1.9s forwards; }
  .plan-svg .plan-scan {
    opacity: 0.5;
    animation: scanSweep 6.5s ease-in-out infinite;
    animation-delay: 2.2s;
  }

  @keyframes drawLine { to { stroke-dashoffset: 0; } }
  @keyframes planFade { to { opacity: 1; } }
  @keyframes scanSweep {
    0%   { transform: translateX(-100px); opacity: 0; }
    10%  { opacity: 0.5; }
    85%  { opacity: 0.5; }
    100% { transform: translateX(820px); opacity: 0; }
  }
  @keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 3px rgba(209,75,31,0.18); }
    50%      { box-shadow: 0 0 0 6px rgba(209,75,31,0.06); }
  }

  .hero__numbers {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    border-top: 1px solid var(--rule);
    border-bottom: 1px solid var(--rule);
  }
  .stats-section { padding: var(--s-12) 0; }
  .stat {
    padding: var(--s-8) var(--s-6);
    border-right: 1px solid var(--rule);
  }
  .stat:last-child { border-right: 0; }
  .stat__num {
    font-family: var(--serif);
    font-size: clamp(40px, 5vw, 64px);
    font-weight: 400;
    letter-spacing: -0.02em;
    line-height: 1;
    margin-bottom: var(--s-3);
  }
  .stat__num em { font-style: italic; color: var(--accent); }
  .stat__label {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--ink-mute);
  }
  @media (max-width: 760px) {
    .hero__numbers { grid-template-columns: 1fr; }
    .stat { border-right: 0; border-bottom: 1px solid var(--rule); }
    .stat:last-child { border-bottom: 0; }
  }

  /* ------------ Trust strip ------------ */
  .trust {
    padding: var(--s-12) 0;
    border-bottom: 1px solid var(--rule);
  }
  .trust__inner {
    display: grid;
    grid-template-columns: 220px 1fr;
    align-items: center;
    gap: var(--s-12);
  }
  @media (max-width: 820px) {
    .trust__inner { grid-template-columns: 1fr; gap: var(--s-6); }
  }
  .trust__label {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--ink-mute);
    line-height: 1.5;
  }
  .trust__logos {
    display: flex;
    flex-wrap: wrap;
    gap: var(--s-12);
    align-items: center;
    color: var(--ink-mute);
  }
  .trust__logos span {
    font-family: var(--serif);
    font-size: 20px;
    font-weight: 500;
    letter-spacing: -0.01em;
    color: var(--ink-soft);
    transition: color .2s ease;
  }
  .trust__logos span:hover { color: var(--ink); }
  .trust__logos span.mono {
    font-family: var(--mono);
    font-size: 13px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-weight: 500;
  }

  /* ------------ Section scaffolding ------------ */
  section.block { padding: var(--s-24) 0; }
  section.block + section.block { border-top: 1px solid var(--rule); }

  .section-head {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: var(--s-16);
    margin-bottom: var(--s-16);
    align-items: end;
  }
  @media (max-width: 900px) {
    .section-head { grid-template-columns: 1fr; gap: var(--s-6); margin-bottom: var(--s-12); }
  }
  .section-head__title h2 { margin-top: var(--s-4); }
  .section-head__intro { color: var(--ink-soft); font-size: 17px; line-height: 1.65; }

  /* ------------ Problem / Solution ------------ */
  .compare {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    border: 1px solid var(--rule);
  }
  @media (max-width: 820px) {
    .compare { grid-template-columns: 1fr; }
  }
  .compare__col {
    padding: var(--s-12);
    background: var(--paper);
  }
  .compare__col + .compare__col {
    border-left: 1px solid var(--rule);
    background: var(--paper-soft);
  }
  @media (max-width: 820px) {
    .compare__col + .compare__col { border-left: 0; border-top: 1px solid var(--rule); }
  }
  .compare__tag {
    font-family: var(--mono);
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--ink-mute);
    margin-bottom: var(--s-4);
  }
  .compare__tag.warm { color: var(--accent-warm); }
  .compare__tag.cool { color: var(--accent); }
  .compare h3 {
    font-size: 40px;
    line-height: 1.15;
    margin-bottom: var(--s-6);
    max-width: 22ch;
    font-weight: 500;
    letter-spacing: -0.02em;
  }
  .compare ul {
    list-style: none;
    padding: 0;
    margin: var(--s-6) 0 0;
  }
  .compare li {
    display: flex;
    gap: var(--s-3);
    padding: var(--s-3) 0;
    border-top: 1px solid var(--rule-soft);
    font-size: 13px;
    color: var(--ink-soft);
  }
  .compare li:first-child { border-top: 0; }
  .compare li::before {
    content: "—";
    color: var(--ink-faint);
    font-family: var(--mono);
    flex-shrink: 0;
  }
  .compare li.good::before { content: "✓"; color: var(--accent); }
  .compare li.bad::before { content: "✕"; color: var(--accent-warm); }

  /* ------------ Capabilities ------------ */
  .layers {
    display: grid;
    grid-template-columns: 0.9fr 1.27fr;
    gap: var(--s-16);
    align-items: start;
  }
  @media (max-width: 980px) {
    .layers { grid-template-columns: 1fr; gap: var(--s-12); }
  }

  /* Left: explanation copy */
  .layers__copy { display: flex; flex-direction: column; gap: var(--s-4); }
  .layers__copy p {
    color: var(--ink-soft);
    font-size: 17px;
    line-height: 1.65;
    max-width: 43ch;
    margin: 0;
  }
  .layers__copy p code {
    font-family: var(--mono);
    font-size: 13px;
    color: var(--ink);
    background: var(--paper-deep);
    padding: 1px 5px;
    letter-spacing: 0.04em;
  }
  .layers__specs {
    margin: var(--s-6) 0 0;
    padding-top: var(--s-6);
    border-top: 1px solid var(--rule);
    display: grid;
    gap: var(--s-3);
  }
  .layers__specs > div {
    display: grid;
    grid-template-columns: 110px 1fr;
    gap: var(--s-4);
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
  }
  .layers__specs dt { color: var(--ink-faint); margin: 0; }
  .layers__specs dd { color: var(--ink); margin: 0; }

  /* Right: stage with axonometric layer stack */
  .layers__stage {
    position: relative;
    height: 480px;
    background:
      linear-gradient(to right, rgba(26,24,21,0.05) 1px, transparent 1px),
      linear-gradient(to bottom, rgba(26,24,21,0.05) 1px, transparent 1px) var(--paper-soft);
    background-size: 20px 20px;
    border: 1px solid var(--rule);
    overflow: hidden;
    perspective: 1800px;
    perspective-origin: 50% 30%;
  }
  .layers__stage-tag {
    position: absolute;
    top: var(--s-4); left: var(--s-4);
    display: flex; align-items: center; gap: var(--s-2);
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--ink-faint);
    z-index: 2;
  }
  .layers__stage-tag .pill {
    display: inline-flex; align-items: center; gap: 6px;
    background: var(--paper);
    border: 1px solid var(--rule);
    padding: 3px 8px;
  }
  .layers__stage-tag .pill .dot {
    width: 6px; height: 6px; border-radius: 999px;
    background: var(--accent-warm);
    box-shadow: 0 0 0 3px rgba(209,75,31,0.18);
  }

  .layers__stack {
    position: absolute;
    left: 45%; bottom: 38px;
    width: 360px; height: 360px;
    transform: translateX(-50%) scale(0.82);
    transform-origin: bottom center;
    transform-style: preserve-3d;
  }
  .layers__layer {
    position: absolute;
    inset: 0;
    transform-origin: 50% 50%;
    transform-style: preserve-3d;
  }
  .layers__layer-card {
    position: absolute; inset: 0;
    transform: rotateX(48deg) rotateZ(-14deg);
    transform-origin: 50% 50%;
    background: var(--paper);
    border: 1px solid var(--rule);
    box-shadow:
      0 12px 28px -16px rgba(26,24,21,0.30),
      0 0 0 1px rgba(26,24,21,0.05);
  }
  .layers__layer-card svg { position: absolute; inset: 0; width: 100%; height: 100%; }
  .layers__layer-tag {
    position: absolute;
    top: 10px; left: 10px;
    display: flex; align-items: center; gap: 8px;
    font-family: var(--mono);
    font-size: 13px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--ink-soft);
    background: rgba(245, 241, 234, 0.95);
    padding: 5px 10px;
    border: 1px solid var(--rule);
  }
  .layers__layer-tag .dot { width: 9px; height: 9px; border-radius: 1px; }
  .layers__layer-num {
    position: absolute;
    top: 10px; right: 10px;
    font-family: var(--mono);
    font-size: 13px;
    color: var(--ink-faint);
    letter-spacing: 0.06em;
    background: rgba(245, 241, 234, 0.85);
    padding: 5px 9px;
  }

  .layers__layer.l0 { transform: translateY(   0px); }
  .layers__layer.l1 { transform: translateY( -34px); }
  .layers__layer.l2 { transform: translateY( -68px); }
  .layers__layer.l3 { transform: translateY(-102px); }
  .layers__layer.l4 { transform: translateY(-136px); }
  .layers__layer.l5 { transform: translateY(-170px); }

  .layers__layer-label {
    position: absolute;
    top: 270px;
    left: 390px;
    transform-origin: left center;
    transform: translateY(-50%) scale(1.2195);
    display: flex; align-items: center; gap: var(--s-3);
    white-space: nowrap;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--ink-soft);
    letter-spacing: 0.04em;
    pointer-events: none;
  }
  .layers__leg-text { display: flex; flex-direction: column; }
  .layers__leg-line {
    width: 56px; height: 1px;
    background: var(--ink-faint);
    position: relative;
    flex: 0 0 auto;
  }

  .layers__leg-line::before {
    content: ""; position: absolute; left: -3px; top: -2.5px;
    width: 6px; height: 6px; border-radius: 999px;
    background: var(--ink);
  }
  .layers__leg-name {
    font-weight: 500;
    color: var(--ink);
    font-family: var(--sans);
    font-size: 12px;
    line-height: 1.1;
    letter-spacing: 0;
  }
  .layers__leg-count {
    font-family: var(--mono);
    color: var(--ink-faint);
    font-variant-numeric: tabular-nums;
    font-size: 10px;
    line-height: 1.1;
  }

  @media (max-width: 980px) {
    .layers__stage { height: 460px; }
  }
  @media (max-width: 600px) {
    .layers__stage { height: 460px; }
    .layers__stack { width: 280px; height: 280px; bottom: 24px; }
    .layers__layer.l0 { transform: translateY(   0px); }
    .layers__layer.l1 { transform: translateY( -28px); }
    .layers__layer.l2 { transform: translateY( -56px); }
    .layers__layer.l3 { transform: translateY( -84px); }
    .layers__layer.l4 { transform: translateY(-112px); }
    .layers__layer.l5 { transform: translateY(-140px); }
    .layers__layer-label { display: none; }
  }

  /* ------------ Workflow ------------ */
  .workflow {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    border-top: 1px solid var(--rule);
    border-bottom: 1px solid var(--rule);
  }
  @media (max-width: 900px) {
    .workflow { grid-template-columns: 1fr 1fr; }
  }
  @media (max-width: 560px) {
    .workflow { grid-template-columns: 1fr; }
  }
  .step {
    padding: var(--s-8) var(--s-6);
    border-right: 1px solid var(--rule);
    position: relative;
  }
  .step:last-child { border-right: 0; }
  @media (max-width: 900px) {
    .step:nth-child(2n) { border-right: 0; }
    .step:nth-child(-n+2) { border-bottom: 1px solid var(--rule); }
  }
  @media (max-width: 560px) {
    .step { border-right: 0; border-bottom: 1px solid var(--rule); }
    .step:last-child { border-bottom: 0; }
  }
  .step__num {
    font-family: var(--serif);
    font-style: italic;
    font-size: 56px;
    line-height: 1;
    color: var(--accent);
    font-weight: 400;
    margin-bottom: var(--s-6);
  }
  .step h3 {
    font-size: 20px;
    margin-bottom: var(--s-3);
    font-weight: 500;
  }
  .step p { font-size: 14px; line-height: 1.6; margin-bottom: 0; }

  /* ------------ Dark section modifier (ink + gradient + grid) ------------ */
  section.block.block--dark {
    background: var(--ink);
    color: var(--paper);
    position: relative;
    overflow: hidden;
    isolation: isolate;
  }
  section.block + section.block.block--dark { border-top: 0; }
  .block--dark::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
      radial-gradient(circle at 15% 30%, rgba(209,75,31,0.18), transparent 35%),
      radial-gradient(circle at 85% 70%, rgba(27,58,122,0.35), transparent 40%),
      repeating-linear-gradient(0deg, rgba(255,255,255,0.04) 0 1px, transparent 1px 40px),
      repeating-linear-gradient(90deg, rgba(255,255,255,0.04) 0 1px, transparent 1px 40px);
    pointer-events: none;
    z-index: 0;
  }
  .block--dark > .container { position: relative; z-index: 1; }

  .block--dark .eyebrow { color: rgba(245, 241, 234, 0.6); }
  .block--dark .eyebrow::before { background: rgba(245, 241, 234, 0.3); }
  .block--dark h2.section-title { color: var(--paper); }
  .block--dark .section-head__intro { color: rgba(245, 241, 234, 0.72); }

  .block--dark .workflow {
    border-top-color: rgba(245, 241, 234, 0.16);
    border-bottom-color: rgba(245, 241, 234, 0.16);
  }
  .block--dark .step { border-right-color: rgba(245, 241, 234, 0.12); }
  .block--dark .step h3 { color: var(--paper); }
  .block--dark .step p { color: rgba(245, 241, 234, 0.72); }
  .block--dark .step__num { color: var(--accent-warm); }
  @media (max-width: 900px) {
    .block--dark .step:nth-child(-n+2) { border-bottom-color: rgba(245, 241, 234, 0.16); }
  }
  @media (max-width: 560px) {
    .block--dark .step { border-bottom-color: rgba(245, 241, 234, 0.16); }
  }

  /* ------------ Formats ------------ */
  .formats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--s-6);
  }
  @media (max-width: 900px) { .formats { grid-template-columns: 1fr 1fr; } }
  @media (max-width: 480px) { .formats { grid-template-columns: 1fr; } }
  .format {
    border: 1px solid var(--rule);
    padding: var(--s-8);
    background: var(--paper);
    transition: background .25s ease, transform .25s ease, border-color .25s ease;
    position: relative;
  }
  .format:hover {
    background: var(--paper-soft);
    border-color: var(--ink);
    transform: translateY(-2px);
  }
  .format__ext {
    font-family: var(--serif);
    font-size: 44px;
    font-weight: 500;
    letter-spacing: -0.02em;
    color: var(--ink);
    margin-bottom: var(--s-3);
    display: flex;
    align-items: baseline;
    gap: var(--s-2);
  }
  .format__ext small {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--ink-mute);
    font-weight: 400;
  }
  .format h3 {
    font-family: var(--serif);
    font-size: 18px;
    font-weight: 500;
    margin-bottom: var(--s-3);
  }
  .format p { font-size: 14px; margin-bottom: 0; color: var(--ink-soft); }

  /* ------------ Use cases ------------ */
  .cases {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--s-8);
  }
  @media (max-width: 900px) { .cases { grid-template-columns: 1fr; } }
  .case {
    border: 1px solid var(--rule);
    background: var(--paper);
    padding: var(--s-12) var(--s-8) var(--s-8);
    position: relative;
    display: flex;
    flex-direction: column;
    gap: var(--s-4);
    transition: background .25s ease;
  }
  .case:hover { background: var(--paper-soft); }
  .case__icon {
    width: 56px; height: 56px;
    display: grid;
    place-items: center;
    margin-bottom: var(--s-4);
  }
  /* Borderless line-art icon: 56px glyph drawn in the soft rule colour */
  .case__icon svg {
    width: 56px; height: 56px;
    stroke: var(--rule);
  }
  .case h3 {
    font-family: var(--serif);
    font-size: 26px;
    line-height: 1.2;
    font-weight: 500;
    letter-spacing: -0.01em;
    margin-bottom: var(--s-2);
  }
  .case p { font-size: 15px; line-height: 1.65; margin-bottom: var(--s-4); }
  .case__tags {
    display: flex; flex-wrap: wrap; gap: 6px;
    margin-top: auto;
    padding-top: var(--s-4);
    border-top: 1px solid var(--rule-soft);
  }
  .case__tags span {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink-mute);
    padding: 3px 8px;
    background: var(--paper-soft);
    border: 1px solid var(--rule-soft);
    border-radius: 999px;
  }
  .case:hover .case__tags span { background: var(--paper); }

  /* ------------ Quote ------------ */
  .quote {
    padding: var(--s-24) 0;
    text-align: center;
  }
  .quote blockquote {
    font-family: var(--serif);
    font-style: italic;
    font-weight: 400;
    font-size: clamp(28px, 3.6vw, 44px);
    line-height: 1.25;
    letter-spacing: -0.015em;
    margin: 0 auto;
    max-width: 24ch;
    color: var(--ink);
  }
  .quote blockquote::before,
  .quote blockquote::after {
    content: "“";
    font-size: 1em;
    line-height: inherit;
    vertical-align: baseline;
    color: var(--ink-faint);
    margin: 0 0.05em;
  }
  .quote blockquote::after { content: "”"; }
  .quote__attr {
    margin-top: var(--s-8);
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--ink-mute);
  }
  .quote__attr strong {
    display: block;
    font-family: var(--serif);
    font-size: 16px;
    font-style: normal;
    font-weight: 500;
    letter-spacing: 0;
    text-transform: none;
    color: var(--ink);
    margin-bottom: 2px;
  }

  /* ------------ Pricing / API ------------ */
  .pricing {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    border: 1px solid var(--rule);
  }
  @media (max-width: 980px) { .pricing { grid-template-columns: 1fr; } }
  .plan {
    padding: var(--s-12) var(--s-8);
    border-right: 1px solid var(--rule);
    background: var(--paper);
    display: flex;
    flex-direction: column;
    gap: var(--s-4);
  }
  .plan:last-child { border-right: 0; }
  @media (max-width: 980px) {
    .plan { border-right: 0; border-bottom: 1px solid var(--rule); }
    .plan:last-child { border-bottom: 0; }
  }
  .plan--featured {
    background: var(--ink);
    color: #FFFFFF;
    position: relative;
    overflow: hidden;
    isolation: isolate;
  }
  .plan--featured::before {
    content: "";
    position: absolute;
    inset: 0;
    /* Warm/cool radial glow over a fine grid — same treatment as the dark workflow block */
    background-image:
      radial-gradient(circle at 16% 12%, rgba(209,75,31,0.15), transparent 52%),
      radial-gradient(circle at 88% 92%, rgba(27,58,122,0.22), transparent 55%),
      linear-gradient(to right,  rgba(255,255,255,0.06) 1px, transparent 1px),
      linear-gradient(to bottom, rgba(255,255,255,0.06) 1px, transparent 1px);
    background-size: auto, auto, 32px 32px, 32px 32px;
    pointer-events: none;
    z-index: 0;
  }
  .plan--featured > * { position: relative; z-index: 1; }
  .plan--featured h3,
  .plan--featured .plan__name { color: #FFFFFF; }
  .plan--featured .plan__price { color: var(--accent-warm); }
  .plan--featured .plan__price small { color: rgba(255, 255, 255, 0.7); }
  .plan.plan--featured p { color: rgba(255, 255, 255, 0.78); }
  .plan.plan--featured ul li { color: #FFFFFF; border-color: rgba(255, 255, 255, 0.16); }
  .plan.plan--featured ul li::before { color: #FFFFFF; }
  .plan--featured .plan__tag {
    color: var(--accent-warm);
    border-color: var(--accent-warm);
    background: rgba(209, 75, 31, 0.12);
  }
  .plan--featured .btn--ghost {
    background: var(--accent-warm);
    color: #FFFFFF;
    border-color: var(--accent-warm);
    box-shadow: 0 1px 0 var(--accent-warm-deep), 0 8px 24px rgba(209, 75, 31, 0.28);
  }
  .plan--featured .btn--ghost:hover {
    background: var(--accent-warm-deep);
    color: #FFFFFF;
    border-color: var(--accent-warm-deep);
  }

  .plan__tag {
    align-self: flex-start;
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--ink-mute);
    padding: 4px 10px;
    border: 1px solid var(--rule);
    border-radius: 999px;
  }
  .plan__name {
    font-family: var(--serif);
    font-size: 24px;
    font-weight: 500;
    letter-spacing: -0.01em;
    line-height: 1.25;
    /* Reserve two lines so every card's header aligns, even one-line names */
    min-height: 2.5em;
    margin-top: var(--s-2);
  }
  .plan__price {
    font-family: var(--serif);
    font-size: 56px;
    font-weight: 400;
    letter-spacing: -0.025em;
    line-height: 1;
    margin: var(--s-4) 0 var(--s-2);
  }
  .plan__price small {
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--ink-mute);
    font-weight: 400;
    margin-left: var(--s-2);
  }
  .plan p { font-size: 14px; line-height: 1.6; margin-bottom: var(--s-4); }
  .plan ul { list-style: none; padding: 0; margin: var(--s-2) 0 var(--s-6); }
  .plan ul li {
    padding: var(--s-3) 0;
    border-top: 1px solid var(--rule-soft);
    font-size: 14px;
    /* color: var(--ink-soft); */
    display: flex;
    gap: var(--s-3);
  }
  .plan ul li::before {
    content: "—";
    color: var(--ink-faint);
    font-family: var(--mono);
  }
  /* Buttons sit flush at the bottom of every card, full-width, centred */
  .plan .btn {
    align-self: stretch;
    justify-content: center;
    text-align: center;
    margin-top: auto;
  }

  /* ------------ FAQ ------------ */
  .faq {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: var(--s-16);
  }
  @media (max-width: 900px) { .faq { grid-template-columns: 1fr; gap: var(--s-8); } }
  details.qa {
    border-top: 1px solid var(--rule);
    padding: var(--s-6) 0;
    transition: padding .2s ease;
  }
  details.qa:last-of-type { border-bottom: 1px solid var(--rule); }
  details.qa summary {
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    gap: var(--s-4);
    font-family: var(--serif);
    font-size: 22px;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--ink);
  }
  details.qa summary::-webkit-details-marker { display: none; }
  details.qa summary::before {
    content: "Q";
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border: 1px solid var(--ink);
    border-radius: 50%;
    font-family: var(--mono);
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0;
    color: var(--ink);
    background: var(--paper);
    flex-shrink: 0;
  }
  details.qa summary .qa__toggle {
    margin-left: auto;
    font-family: var(--mono);
    font-size: 22px;
    color: var(--ink-mute);
    flex-shrink: 0;
  }
  details.qa summary .qa__toggle::before { content: "+"; }
  details.qa[open] summary .qa__toggle::before { content: "—"; }
  details.qa p {
    margin: var(--s-4) 0 0;
    color: var(--ink-soft);
    font-size: 15px;
    line-height: 1.7;
    max-width: 64ch;
    display: flex;
    gap: var(--s-4);
    align-items: flex-start;
  }
  details.qa p::before {
    content: "A";
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border: 1px solid var(--accent-warm);
    border-radius: 50%;
    font-family: var(--mono);
    font-size: 13px;
    font-weight: 500;
    color: var(--accent-warm);
    background: var(--paper);
    flex-shrink: 0;
    margin-top: -3px;
  }

  /* ------------ CTA footer band ------------ */
  .cta-band {
    background: var(--ink);
    color: var(--paper);
    padding: var(--s-24) 0;
    position: relative;
    overflow: hidden;
  }
  .cta-band::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
      radial-gradient(circle at 15% 30%, rgba(209,75,31,0.18), transparent 35%),
      radial-gradient(circle at 85% 70%, rgba(27,58,122,0.35), transparent 40%),
      repeating-linear-gradient(0deg, rgba(255,255,255,0.04) 0 1px, transparent 1px 40px),
      repeating-linear-gradient(90deg, rgba(255,255,255,0.04) 0 1px, transparent 1px 40px);
    pointer-events: none;
  }
  .cta-band .container { position: relative; }
  .cta-band__grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: var(--s-12);
    align-items: end;
  }
  @media (max-width: 900px) {
    .cta-band__grid { grid-template-columns: 1fr; gap: var(--s-8); }
  }
  .cta-band h2 {
    color: var(--paper);
    font-size: clamp(40px, 5.6vw, 80px);
    line-height: 1.02;
    letter-spacing: -0.025em;
    font-weight: 400;
  }
  .cta-band h2 em { font-style: italic; color: var(--accent-warm); }
  .cta-band .eyebrow { color: rgba(245, 241, 234, 0.5); }
  .cta-band .eyebrow::before { background: rgba(245, 241, 234, 0.4); }
  .cta-band p { color: rgba(245, 241, 234, 0.72); font-size: 16px; max-width: 50ch; }
  .cta-band .btn--ghost {
    color: var(--paper);
    border-color: rgba(245, 241, 234, 0.3);
  }
  .cta-band .btn--ghost:hover { background: var(--paper); color: var(--ink); border-color: var(--paper); }
  .cta-band__actions {
    display: flex;
    flex-direction: column;
    gap: var(--s-4);
    align-items: flex-start;
  }
  .cta-band__ctas { display: flex; gap: var(--s-3); flex-wrap: wrap; }
  .cta-band__meta {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: rgba(245, 241, 234, 0.5);
    margin: 0;
  }

  /* ------------ Footer ------------ */
  footer.site-footer {
    background: var(--paper-soft);
    padding: var(--s-16) 0 var(--s-8);
    color: var(--ink-mute);
    font-size: 14px;
  }
  .footer__grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1fr;
    gap: var(--s-12);
    padding-bottom: var(--s-12);
    border-bottom: 1px solid var(--rule);
  }
  @media (max-width: 820px) {
    .footer__grid { grid-template-columns: 1fr 1fr; }
  }
  @media (max-width: 480px) {
    .footer__grid { grid-template-columns: 1fr; }
  }
  .footer__brand p {
    font-family: var(--serif);
    font-style: italic;
    font-size: 16px;
    color: var(--ink-soft);
    max-width: 36ch;
    margin: var(--s-3) 0 0;
  }
  .footer__social {
    list-style: none;
    display: flex;
    gap: var(--s-4);
    padding: 0;
    margin: var(--s-6) 0 0;
  }
  .footer__social a {
    display: inline-flex;
    color: var(--ink-mute);
    transition: color .2s ease, transform .2s ease;
  }
  .footer__social a:hover { color: var(--ink); transform: translateY(-2px); }
  .footer__social svg { width: 20px; height: 20px; fill: currentColor; }
  .footer__col h3 {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--ink-faint);
    margin: 0 0 var(--s-4);
    font-weight: 500;
  }
  .footer__col ul { list-style: none; padding: 0; margin: 0; display: grid; gap: var(--s-3); }
  .footer__col a { color: var(--ink-soft); transition: color .2s ease; }
  .footer__col a:hover { color: var(--ink); }

  .footer__base {
    margin-top: var(--s-6);
    display: flex;
    justify-content: space-between;
    gap: var(--s-6);
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink-faint);
    flex-wrap: wrap;
  }

  /* ------------ Decorative paper grid ------------ */
  .paper-grid {
    position: absolute;
    inset: 0;
    background-image:
      linear-gradient(to right, rgba(26, 24, 21, 0.05) 1px, transparent 1px),
      linear-gradient(to bottom, rgba(26, 24, 21, 0.05) 1px, transparent 1px);
    background-size: 32px 32px;
    pointer-events: none;
    mask-image: radial-gradient(ellipse at 50% 30%, black 50%, transparent 80%);
  }

  /* ------------ Animations ------------ */
  @media (prefers-reduced-motion: no-preference) {
    .reveal {
      opacity: 0;
      transform: translateY(20px);
      transition: opacity .8s ease, transform .8s ease;
    }
    .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }
  }

  :focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
  }

  /* ------------ Contact form ------------ */
  .contact {
    background: var(--paper-soft);
    border-top: 1px solid var(--rule-soft);
    border-bottom: 1px solid var(--rule-soft);
  }
  .contact__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--s-12);
    margin-top: var(--s-12);
  }
  @media (min-width: 900px) {
    .contact__grid { grid-template-columns: 0.85fr 1.15fr; gap: var(--s-16); }
  }
  .contact__aside p {
    color: var(--ink-soft);
    font-size: 16px;
    line-height: 1.7;
    margin: var(--s-4) 0 var(--s-8);
    max-width: 42ch;
  }
  .contact__meta {
    border-top: 1px solid var(--rule);
    padding-top: var(--s-6);
    display: grid;
    gap: var(--s-4);
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--ink-mute);
  }
  .contact__meta strong {
    display: block;
    font-family: var(--serif);
    font-size: 15px;
    letter-spacing: 0;
    text-transform: none;
    color: var(--ink);
    font-weight: 500;
    margin-bottom: 2px;
  }

  .contact-form {
    display: grid;
    gap: var(--s-6);
  }
  .contact-form__row {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--s-6);
  }
  @media (min-width: 600px) {
    .contact-form__row { grid-template-columns: 1fr 1fr; }
  }
  .field { display: grid; gap: var(--s-2); }
  .field label {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--ink-mute);
  }
  .field input,
  .field textarea {
    background: transparent;
    border: 0;
    border-bottom: 1px solid var(--rule);
    padding: var(--s-3) 0;
    font-family: var(--sans);
    font-size: 16px;
    color: var(--ink);
    width: 100%;
    transition: border-color .2s ease;
  }
  .field textarea {
    resize: vertical;
    min-height: 140px;
    line-height: 1.55;
  }
  .field input:focus,
  .field textarea:focus {
    outline: none;
    border-bottom-color: var(--ink);
  }
  .field input::placeholder,
  .field textarea::placeholder {
    color: var(--ink-faint);
  }
  .contact-form__hp {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
  }
  .contact-form__foot {
    display: flex;
    align-items: center;
    gap: var(--s-6);
    flex-wrap: wrap;
    margin-top: var(--s-2);
  }
  .contact-form__status {
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--ink-mute);
    min-height: 1em;
  }
  .contact-form__status.is-error { color: var(--accent-warm-deep); }
  .contact-form__status.is-ok    { color: var(--accent); }
  .contact-form button[type="submit"][disabled] {
    opacity: 0.5;
    cursor: progress;
    transform: none;
  }
/* =====================================================================
   BLOG POST STYLES — appended for /blog/ pages
   ===================================================================== */

.container--narrow { max-width: var(--container-narrow); }

.post {
  padding-top: var(--s-16);
  padding-bottom: var(--s-24);
}

.post__breadcrumb {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink-mute);
  margin-bottom: var(--s-8);
}
.post__breadcrumb a {
  color: var(--ink-soft);
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-color: var(--rule);
}
.post__breadcrumb a:hover { color: var(--ink); text-decoration-color: var(--ink); }
.post__breadcrumb span[aria-hidden] { margin: 0 var(--s-2); color: var(--ink-faint); }

.post__header { margin-bottom: var(--s-12); }
.post__header h1 {
  font-size: clamp(36px, 5vw, 56px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: var(--s-3) 0 var(--s-6);
}
.post__lede {
  font-size: 20px;
  line-height: 1.5;
  color: var(--ink-soft);
  max-width: 60ch;
}

.post__section { margin-bottom: var(--s-12); }
.post__section h2 {
  font-size: 28px;
  line-height: 1.2;
  letter-spacing: -0.005em;
  margin: 0 0 var(--s-4);
  padding-top: var(--s-6);
  border-top: 1px solid var(--rule-soft);
}
.post__section h3 {
  font-size: 18px;
  font-weight: 600;
  margin: var(--s-6) 0 var(--s-2);
}
.post__section p,
.post__section li { max-width: 70ch; }
.post__section p { margin: 0 0 var(--s-3); }
.post__section a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.post__section a:hover { color: var(--accent-warm-deep); }

.post__steps {
  list-style: none;
  counter-reset: step;
  padding: 0;
  margin: var(--s-6) 0 0;
}
.post__steps > li {
  counter-increment: step;
  position: relative;
  padding-left: var(--s-12);
  margin-bottom: var(--s-8);
}
.post__steps > li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 14px;
  display: grid;
  place-items: center;
}
.post__steps h3 { margin-top: 0; }

.post__faq details {
  border-top: 1px solid var(--rule-soft);
  padding: var(--s-4) 0;
}
.post__faq details:last-of-type { border-bottom: 1px solid var(--rule-soft); }
.post__faq summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--s-4);
}
.post__faq summary::-webkit-details-marker { display: none; }
.post__faq summary h3 {
  display: inline;
  margin: 0;
  font-weight: 500;
  font-size: 17px;
}
.post__faq summary::after {
  content: "+";
  font-family: var(--mono);
  font-size: 20px;
  color: var(--ink-mute);
}
.post__faq details[open] summary::after { content: "−"; }
.post__faq details p { margin: var(--s-3) 0 0; color: var(--ink-soft); }

.post__related ul { list-style: none; padding: 0; margin: 0; }
.post__related li {
  padding: var(--s-3) 0;
  border-bottom: 1px solid var(--rule-soft);
}
.post__related li:first-child { border-top: 1px solid var(--rule-soft); }
.post__related a {
  display: block;
  font-size: 18px;
  color: var(--ink);
  text-decoration: none;
}
.post__related a:hover { color: var(--accent-warm-deep); }

.post__cta {
  margin-top: var(--s-16);
  padding: var(--s-12);
  background: var(--paper-soft);
  border: 1px solid var(--rule-soft);
  text-align: center;
}
.post__cta h2 { border: 0; padding: 0; margin: 0 0 var(--s-3); }
.post__cta p { margin: 0 0 var(--s-6); color: var(--ink-soft); }

/* =====================================================================
   BLOG INDEX STYLES
   ===================================================================== */

.blog-index { padding-top: var(--s-16); padding-bottom: var(--s-24); }
.blog-index__header { margin-bottom: var(--s-12); }
.blog-index__header h1 {
  font-size: clamp(40px, 6vw, 64px);
  line-height: 1.05;
  letter-spacing: -0.015em;
  margin: 0 0 var(--s-4);
}
.blog-index__header p { font-size: 18px; color: var(--ink-soft); max-width: 60ch; }

.blog-index__list { list-style: none; padding: 0; margin: 0; }
.blog-index__list > li {
  padding: var(--s-8) 0;
  border-top: 1px solid var(--rule-soft);
}
.blog-index__list > li:last-child { border-bottom: 1px solid var(--rule-soft); }
.blog-index__entry .eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-mute);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  display: block;
  margin-bottom: var(--s-2);
}
.blog-index__entry h2 {
  font-size: 24px;
  font-weight: 600;
  margin: 0 0 var(--s-2);
}
.blog-index__entry h2 a { color: var(--ink); }
.blog-index__entry h2 a:hover { color: var(--accent-warm-deep); }
.blog-index__entry p { margin: 0; color: var(--ink-soft); max-width: 70ch; }

/* =====================================================================
   GUIDES SURFACE SECTION on landing page
   ===================================================================== */

.guides-surface { padding-top: var(--s-16); padding-bottom: var(--s-16); }
.guides-surface__head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: var(--s-8); }
.guides-surface__head h2 { font-size: 32px; margin: 0; }
.guides-surface__head a { font-family: var(--mono); font-size: 13px; color: var(--ink-soft); }
.guides-surface__head a:hover { color: var(--ink); }
.guides-surface__list { list-style: none; padding: 0; margin: 0; }
.guides-surface__list li {
  padding: var(--s-4) 0;
  border-top: 1px solid var(--rule-soft);
}
.guides-surface__list li:last-child { border-bottom: 1px solid var(--rule-soft); }
.guides-surface__list a {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--s-6);
  align-items: baseline;
  color: var(--ink);
}
.guides-surface__list a:hover { color: var(--accent-warm-deep); }
.guides-surface__list .title { font-size: 18px; font-weight: 500; }
.guides-surface__list .desc { font-size: 14px; color: var(--ink-mute); max-width: 50ch; }